DESIGN OF WALL FOOT
For Wall Footings Applied with Concentric Loads, Lat
DESIGN CRITERIA
Wall Thickness, t Height of Soil above the footing, hs
300.00 mm 740.00 mm
Thickness of the Footing, hc Concrete Cover Diameter of Main Reinforcements Eccentricity of Lateral Loads, e
477.50 75.00 25.00 300.00
Effective depth of the Footing, d Depth of Embedment, D
mm mm mm mm
390.00 mm 1,217.50 mm
FOOTING DIMENSION DETERMINATION Effective Soil Pressure, qe Required Width of Footing, B
FOOTING THICKNESS ADEQUACY
Width of Footing, B 2,200.00 mm 176.70 kPa 2,200.00 mm
REMARKS Adequate
From the Actual Soil Pressure Diagram Minimum Actual Soil Pressure, qumin
240.00 kPa
Maximum Actual Soil Pressure, qumax
240.00 kPa
Actual Soil Pressure @ Critical Section, qu1
240.00 kPa
Actual Soil Pressure at the Face of Wall, qu2
240.00 kPa
Check for One-Way Shear / Beam-Action Failure Shear Capacity, φVn Actual Shear @ Critical Section, Vu1
263.12 kN/m 134.40 kN/m
BEARING REINFORCEMENT Diameter of Bars for Dowels Yield Strength of Dowels Bearing Strength, φPnb At Wall At Footing Ultimate Bearing Capacity, Pn Remarks Minimum Dowel Requirement Minimum Area of Dowel Reinforcement No. of Bars Spacing
REMARKS Dowels are NOT Required 25.00 280.00 4,641.00 4,641.00 9,282.00
mm Mpa kN/m kN/m kN/m
528.00 kN/m Dowels are NOT Required
1,500.00 mm2 4 pcs 900.00 mm
Spacing Requirements as Specied by the Code Minimum Clear Spacing, Smin 25.40 mm db 4/3(Max. Aggregate) 25mm Remarks Dowel Requirement (If Dowels are REQUIRED) Excess Load, Pe
25.00 mm 25.40 mm 25.00 mm Ok for Rebar Clear Spacing
N/A kN/m
No. of Bars
N/A mm2 N/A pcs
Spacing
N/A mm
Required Area of Dowel Reinforcement
Spacing Requirements as Specied by the Code Minimum Clear Spacing, Smin N/A mm db 25.00 mm 4/3(Max. Aggregate) 25.40 mm 25mm 25.00 mm Remarks
N/A
DETAILING
DIMENSIONS Thickness of Wall, t Depth of Embedment, D Thickness of Footing, hc Width of Footing, B
Transverse Reinforcements Longitudinal Reniforcements Dowels
REINFORCEMENTS 25.00 7 25.00 25.00
SIGN OF WALL FOOTING
plied with Concentric Loads, Lateral Loads & Moments
DESIGN CRITERIA NSCP 2010
DESIGN REFERENCE
Type of Loads
Load
Dead Load, PDL
200.00
Live Load, PLL
180.00
Wind Load, PWL Eathquake Load, PEQ Total Pa
Type of Loads
0.00
280.00
528.00
420.00
Pu
V
420.00
0.00
528.00
0.00 380.00 Lateral Loads, H (kN/m) Load Combination I II III IV
Load
Dead Load, HDL
0.00
Live Load, HLL
0.00
Wind Load, HWL
0.00
Eathquake Load, HEQ Total Ha
0.00 0.00
Type of Loads
Concentric Loads, P (kN/m) Load Combination I II III IV
0.00
0.00
Live Load, MLL
0.00
Wind Load, MWL
0.00
Eathquake Load, MEQ Total Ma
0.00 0.00
0.00
0.00
Moments, M (kN-m/m) Load Combination I II III IV
Load
Dead Load, MDL
0.00
0.00
Type of Concrete Compressive Strength of Footing, fc'
0.00
0.00
Hu
V
0.00
Mu
V
0.00
0.00
Normal-Weight Concrete 28.00 Mpa
Compressive Strength of Wall, fc' Yield Strength of Main Reinforcements Allowable Soil Pressure, qa Surcharge, q Unit Weight of Concrete, γc Unit Weight of Soil, γs
28.00 280.00 200.00 0.00 24.00 16.00
Strength Reduction Factors, φ a. Tension-contolled Sections b. Shear & Torsion c. Bearing
0.90 0.75 0.65
Mpa Mpa kPa kPa kN/m3 kN/m3
0.00
β =
0.85
β = ρ =
0.85 0.0020
0.00
Modification Factor, λ
1.00
FLEXURAL REINFORCEMENTS
Spacing of Bars No. of Long Bars
From the Actual Soil Pressure Diagram Actual Moment @ Critical Section, Mu
350.00 7
108.30 kN-m
For the Transverse Reinforcements Coeffiecient of Resistance, Ru Required Steel Ratio, ρreq Minimum Steel Ratio Requirements Approach Minimum Steel Ratio, ρmin Remarks Area of Steel @ Transverse Direction Actual Spacing Actual Clear Spacing Provided Spacing Spacing Requirements Maximum Spacing, Smax 3hc 450 mm
0.79 Mpa 0.0029
Conservative 0.0020 Use ρreq 0.0029 1,372.39 357.67 332.67 350.00
mm2 mm mm mm
450.00 mm 1,432.50 mm 450.00 mm
Remarks, Use S
350.00 mm
Minimum Clear Spacing, Smin db 4/3(Max. Aggregate) 25mm Remarks, Use S
25.40 25.00 25.40 25.00 350.00
Spacing, S For the Longitudinal Reinforcements Required No. of Longitudinal Bars Spacing, S
350.00 mm 7.00 pcs 350.00 mm
Adequate Adequate
Wall Footing
DEVELOPMENT LENGTH
mm mm mm mm mm
Development for Tension (Transverse Bars) Uncoated or Galvanized Coating of Bars Factors, ψ ψt 1.30 ψe 1.00 ψs 1.00 Checking of Factors ψt ψe Required ψt ψe Cb Distance from the nearest concrete surface Half of Spacing, S
1.30 1.30 87.50 mm 87.50 mm 175.00 mm
Minimum Development Length (ld)
300.00 mm
Basic Development Length (ldb) Development Length (ld) Actual Development Length (ld) Remarks
446.69 mm 437.11 mm 875.00 mm Adequate
Development for Compression (Dowels) At Wall Minimum Basic Development Length (ldb)
200.00 mm
Basic Development Length (ldb) (0.24fydb)/(λfc')
317.49 mm 317.49 mm
0.043dbfy Development Length (ld) Remarks
301.00 mm 873.19 mm Adequate
At Footing Basic Development Length (ldb)
317.49 mm
(0.24fydb)/(λfc')
317.49 mm
0.043dbfy 30.10 mm Development Length (ld) 873.19 mm Actual Development Length (ld) 352.50 mm Inadequate: Increase hc or Requires Bending Remarks If Bending of Bars are Considered Bend Diameter Actual Splice Maximum Length of Bend Remarks
DETAILING
SIONS 300.00 1,217.50 477.50 2,200.00
mm mm mm mm
CEMENTS mm dia. @ mm dia. @ mm dia. @
350.00 mm 350.00 mm 900.00 mm
150.00 mm 465.32 mm 950.00 mm Adequate
mm pcs
Adequate Adequate
CODE NSCP 2001 NSCP 2010
Strength-Reduction Factors Tension-controlled Shear & Torsion Bearing on Conrete Sections 0.90 0.85 0.70 0.90 0.75 0.65
Conservative More Conservative
Epoxy-Coated Other Epoxy-coating Uncoated or Galvanized
1.50 1.20 1.00
Modification Factors Normal-Weight Lightweight Sand-lightweight Concrete Concrete Concrete 1.00 0.75 0.85 1.00 0.75 0.85
GENERAL NOTES
1 Text in GREEN is the design input. This where you must type/input the values according to your design spe 2 Text in BLUE is the result of values you have typed/selected. 3 Text in BLACK is for general instructions.
es according to your design specifications
